10 Best Power Banks 2025 in the United States

The Charmast 10000mAh Portable Charger offers a convenient and versatile power solution, especially for those who travel frequently or use multiple devices. One of its standout features is the built-in cables, which include 3 output cables and 1 input cable, eliminating the need to carry separate cables. With a total of 6 outputs and 3 inputs, it supports charging up to 6 devices simultaneously, making it ideal for users with a variety of smartphones and tablets including iPhone, Samsung, Google Pixel, LG, and more.

The included digital LED display is a useful feature that allows you to monitor the remaining battery percentage accurately, preventing unexpected power loss. The slim design (5.68''x2.63''x0.69'') and lightweight build (0.53lb) enhance its portability, making it easy to carry around like a lighter phone. Fast charging capability ensures your devices get charged quickly, which is a significant advantage for busy users.

However, with a capacity of 10000mAh, this power bank may not be sufficient for extended trips or heavy usage without frequent recharges. Additionally, while the variety of built-in cables is convenient, it might not cater to users with specialized charging needs beyond the standard USB-C, Micro USB, and Lightning ports. This power bank is highly recommended for everyday use and travel, offering reliability and convenience for charging multiple devices.

This HELLEE power bank offers a solid 15,000mAh capacity, which is enough to recharge most smartphones around 3 to 4 times, making it suitable for daily use or short trips. One of its standout features is the built-in cables for multiple connectors (USB A, Type C, iOS, and Micro), so you won't need to carry extra cables—very handy if you have different devices. It supports fast charging at 22.5W, speeding up the charging process compared to basic chargers, and the intelligent voltage regulation helps protect your devices’ batteries.

You can charge up to 6 devices at once thanks to multiple outputs, including a bi-directional Type-C port that handles fast input and output charging, which adds great flexibility if you're powering several gadgets simultaneously. Despite the higher capacity and multiple ports, it remains compact and lightweight (weighing just over 7 ounces and roughly the size of a small smartphone), making it easy to carry in pockets or bags, and it even has a lanyard for extra convenience. The LED display is a nice touch, showing exact battery percentage and charging status, so you always know how much power you have left. Safety-wise, it meets airline standards and includes protections against overheating and overcharging, giving peace of mind during travel.

A minor downside is that while 22.5W fast charging is good, it’s not as fast as some premium power banks that offer 30W or higher, so charging very large devices like some tablets might take longer. Also, despite the multiple ports, the actual output power per port when charging several devices at once might be lower, which means charging speed could slow down if you connect all six devices. This power bank is well suited for travelers, professionals, or anyone needing a reliable, versatile, and easy-to-use charger that handles multiple devices without fuss.

This Charmast power bank offers a handy 10,000mAh capacity, which is enough to recharge most smartphones about two times but might fall short for charging tablets or multiple large devices extensively. One of its standout features is the built-in cables—three output cables (for iPhone, USB-C, and Micro USB) and one input cable—so you won't have to carry extra cords, making it especially convenient for travel or daily use. It supports up to six devices charging simultaneously thanks to three built-in output cables plus three USB ports, which is great if you have multiple gadgets to power. Measuring about 5.7 by 2.6 by 0.7 inches and weighing just under 9 ounces, it’s slim and light enough to carry comfortably in a bag or even a large pocket. The digital LED display clearly shows how much battery is left, removing guesswork. Charging speed is good with up to 3A output, providing relatively fast power delivery to devices that support it. It’s compatible with a wide range of popular phones and tablets, including iPhones, Samsung, Google Pixel, and others, covering most user needs.

On the downside, while built-in cables add convenience, they can limit flexibility if a cable gets damaged or if you need a different length. Also, the 10,000mAh capacity is solid but not the highest available, so heavy users might need to recharge the power bank more often. This power bank is well-suited for users looking for a portable, all-in-one charging solution with multiple outputs and built-in cables, making it a practical choice for everyday carry and travel.